I didn't spend too much time in Sydney, I really just passed through on my way to the Marconi Historic Site in Glace Bay, but I did take a drive through the old part of downtown and stopped for a while at the waterfront. This 'little' violin is located in front of the visitor centre and it's what folks visiting by cruise ship first see when they stop in Sydney.
The historic site is just a small building with several exhibits that describe Marconi's achievement.
A small model of the original site and its massive 210 feet tall towers.
This map shows the sites in Marconi's early experiments. The bottom red line show the path taken by the wireless signals on December 15, 1902. Marconi later did more experiments between England and the US, but more on that later when I write about my stop in Cape Cod.
Marconi and his assistants continued there experiments at the Table Head site 1903, but service was unreliable. More powerful equipment and longer aerials were required to ensure consistent communications across the Atlantic. During the winter of 1904-05, the entire Table Head station with its towers, wires and buildings was dismantled and moved to a site near Port Morien, 9km away. The new equipment and aerial system there gave Marconi the results he was seeking, and in 1907 a regular transatlantic communication service was established. The following picture shows the only remaining artifacts of the massive tower structure here at the Table Head station, one of the concrete slabs that held up one of the massive 210 feet tall towers.
Poldhu on the southwest coast of England is straight out over the horizon.
You wouldn't want to get too close to the cliffs near this site.